CN106467078A - System and method for occupant's height - Google Patents
System and method for occupant's height Download PDFInfo
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- CN106467078A CN106467078A CN201610653472.6A CN201610653472A CN106467078A CN 106467078 A CN106467078 A CN 106467078A CN 201610653472 A CN201610653472 A CN 201610653472A CN 106467078 A CN106467078 A CN 106467078A
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- occupant
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- height
- weight
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
- B60R21/01512—Passenger detection systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
- B60R21/01512—Passenger detection systems
- B60R21/01516—Passenger detection systems using force or pressure sensing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
- B60R21/01512—Passenger detection systems
- B60R21/0153—Passenger detection systems using field detection presence sensors
- B60R21/01538—Passenger detection systems using field detection presence sensors for image processing, e.g. cameras or sensor arrays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
- B60R21/01512—Passenger detection systems
- B60R21/01544—Passenger detection systems detecting seat belt parameters, e.g. length, tension or height-adjustment
- B60R21/01548—Passenger detection systems detecting seat belt parameters, e.g. length, tension or height-adjustment sensing the amount of belt winded on retractor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
- B60R21/01512—Passenger detection systems
- B60R21/01552—Passenger detection systems detecting position of specific human body parts, e.g. face, eyes or hands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
- B60R21/01554—Seat position sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/48—Control systems, alarms, or interlock systems, for the correct application of the belt or harness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/48—Control systems, alarms, or interlock systems, for the correct application of the belt or harness
- B60R2022/4808—Sensing means arrangements therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Seats For Vehicles (AREA)
- Air Bags (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
Image is received from imageing sensor.This image includes the head of occupant.The distance that the seating height of occupant is based at least partially on the head from imageing sensor to occupant to determine with the angle of the seat detecting.Safety device is based at least partially on the seating height of occupant to adjust.
Description
Technical field
The present invention relates to motor vehicle technology field, and the system and method more particularly relating to occupant's height.
Background technology
Vehicle passive safety system can use occupant information, for example, occupant's height and body weight.However, in determination vehicle
Occupant information is probably difficult and costliness.For example, the height that determination sits in the occupant in vehicle is difficult, because taking advantage of
Member is just seated.
Occupant's detection and categorizing system are detected automotive occupant and automotive occupant are classified using various tolerance.This degree
Amount can measured or be based on user input.Sometimes, this tolerance is related to the build of occupant.For example, occupant detecting system can be with base
To determine that occupant whether there is in vehicle in the weight on seat.Such system sometimes can by adult occupants and child,
House pet or no inanimate object distinguish.
Content of the invention
According to the present invention, a kind of system is provided, comprises computer, this computer includes processor and memorizer, this storage
The executable instruction of processor is passed through in device storage, and this instruction is：
Receive the image of the head including occupant from imageing sensor；
The distance being based at least partially on the head from imageing sensor to occupant and the angle of the seat detecting
To determine the seating height of occupant；And
It is based at least partially on the seating height of occupant to adjust safety device.
According to one embodiment of present invention, wherein instruction further includes to position the finger of the eye pupil in the image of occupant
Order.
According to one embodiment of present invention, wherein instruction further include to be based at least partially on from imageing sensor to
The distance of eye pupil is determining the instruction of the seating height of occupant.
According to one embodiment of present invention, wherein instruction further includes image based on occupant and determines head pose
The instruction of angle.
According to one embodiment of present invention, wherein instruction further includes to receive the drive and passengers weight from weight sensor
Instruction.
According to one embodiment of present invention, wherein instruction further includes to calculate based on seating height and drive and passengers weight
The instruction of performance figure.
According to one embodiment of present invention, wherein safety device is seat harness, and instructs including based on quality
Index is adjusting the instruction of seat harness position.
According to one embodiment of present invention, wherein safety device is seat harness, and instructs including based on quality
Index is adjusting the instruction of seat harness pull-out rate.
According to the present invention, a kind of system is provided, comprises：
Imageing sensor；
Seat, this seat includes backrest, seat base and is arranged on the angular transducer on backrest；And
Computer, this computer includes processor and memorizer, and this memory storage passes through the executable instruction of processor,
This instruction is：
Receive the image of the head including occupant from imageing sensor；
The angle of the distance being based at least partially on the head from imageing sensor to occupant and the seat detecting is come really
Determine the seating height of occupant；And
It is based at least partially on the seating height of occupant to adjust safety device.
According to one embodiment of present invention, wherein instruction further includes image based on occupant and determines head pose
The instruction of angle.
According to one embodiment of present invention, wherein instruction further includes to receive the drive and passengers weight from weight sensor
Instruction.
According to one embodiment of present invention, wherein instruction further includes to count based on seating height and drive and passengers weight
Calculate the instruction of performance figure.
According to one embodiment of present invention, wherein safety device is seat harness, and instructs including based on quality
Index is adjusting the instruction of seat harness position.
According to one embodiment of present invention, wherein safety device is seat harness, and instructs including based on quality
Index is adjusting the instruction of seat harness pull-out rate.
According to the present invention, a kind of method is provided, comprises：
Receive the image including occupant's head from imageing sensor；
The distance being based at least partially on the head from imageing sensor to occupant and the angle of the seat detecting
To determine the seating height of occupant；And
It is based at least partially on the seating height of occupant to adjust safety device.
According to one embodiment of present invention, comprise further to position the eye pupil in the image of occupant.
According to one embodiment of present invention, comprise further to receive the drive and passengers weight from weight sensor.
According to one embodiment of present invention, comprise further to calculate quality and refer to based on seating height and drive and passengers weight
Number.
According to one embodiment of present invention, wherein safety device is seat harness, and method comprises base further
To adjust seat harness position in performance figure.
According to one embodiment of present invention, wherein safety device is seat harness, and method further includes base
To adjust seat harness pull-out rate in performance figure.
Brief description
Fig. 1 shows have and seated weight based on occupant and seating height can specify the showing of system of classification for occupant
Example vehicle；
Fig. 2A is the block diagram of the system of Fig. 1；
Fig. 2 B is another block diagram of the system of Fig. 1；
Fig. 3 is the view for determining the example system of the height of occupant in vehicle；
Fig. 4 shows the example images providing height to determine information；
Fig. 5 is for determining the height of occupant and the height based on occupant adjusts the process flow diagram flow chart of security system；
Fig. 6 A-6C shows the example relationship between the various tolerance of the performance figure that may be used to determine occupant
Figure；
Fig. 7 be for determine and update occupant classification process flow diagram flow chart.
Specific embodiment
Medical professional using body-mass index (BMI) come with respect to the height of people and body weight roughly estimate he or
Her build.The BMI of people may indicate that this people whether underweight, be in normal type, overweight or fat.These identicals
Classification can be used to adjust some vehicle subsystems, such as constrained system.BMI can be from stand weight and the standing height of people
Calculate.However, this information is difficult to obtain for the vehicle, unless voluntarily provided by occupant.Even if it is voluntarily provided, but
The weight of people may often change.Therefore, only request automotive occupant provides their height and weight to be not necessarily determination
The height of occupant and the reliable fashion of weight.
One kind possible solution to there is vehicle classification system, and this vehicle classification system is from his or her with regard to seat height
Degree to determine the BMI of occupant with seated weight.Example classification system can include processor, this processor be programmed to determine with
Seating height that occupant is associated and seated weight and be at least partially based on seated weight and come for taking advantage of with the ratio of seating height
The specified classification of member.This seating height can be the function of the vertical height being adjusted by chair angle.This seated weight can wrap
Include the weight putting on seat, thus be excluded that the major part of the lower limb of occupant.Seated weight can be claimed with the ratio of seating height
For body-mass index or the BMI that takes one's seat of taking one's seat.In some cases, it is flat with seating height that the BMI that takes one's seat can be seated weight
The function of the ratio of side.
Taking one's seat BMI may be relevant with the more conventional BMI being used by medical professional.Therefore, the BMI that takes one's seat can use
Come to determine specific occupant whether underweight, be in normal type, overweight or fat.Various vehicle subsystems can correspondingly enter
Row adjustment.
Shown element can take a number of different forms and include multiple and/or substitutions of elements and facility.Shown
Exemplary components be not intended to be limiting.It is in fact possible to using additional or selective part and/or embodiment.
As shown in figure 1, main vehicle 100 includes occupant classification system 105, this occupant classification system 105 can be according to occupant
Build occupant is classified, and provide his or her height and weight without occupant.Occupant classification system 105 can measure
The seating height of occupant, the seated weight of measurement occupant, determine the seated weight of occupant and the ratio of seating height and at least
It is based partially on this ratio to specify classification.While shown as car, but main vehicle 100 can include any visitor and use or business PC
Motor-car, such as car, truck, sport vehicle, transboundary car, van, jubilee wagen, taxi, bus
Deng.In some feasible methods, as discussed below, vehicle be configured as autonomous (for example, unmanned) pattern,
The autonomous vehicle of operation under part autonomous mode and/or non-autonomous pattern.
As shown in Figure 2 A, occupant classification system 105 can include weight sensor 110, height sensor 115, seat belt
Pull-out sensor 120 and processor 125.
Weight sensor 110 can include the computing electronics being programmed to the seated weight measuring occupant.Weight passes
Sensor 110 can be embedded in seat (such as pilot set).In some feasible methods, weight sensor
110 can be programmed to measure the weight putting on seat.This weight can be referred to as " seated weight ", because it represents working as
Weight when occupant takes one's seat.The seated weight of occupant can be differently configured from the weight of standing of occupant, because seated weight may be excluded
The most weight of the lower limb of occupant.Weight sensor 110 can be further programmed to output and represent by weight sensor
The seated weight signal of the seated weight of 110 measurements.
Height sensor 115 can include the computing electronics being programmed to the seating height measuring occupant.With regard to seat height
Degree can include vertical height, and this vertical height includes the distance at the top of the head from the top of such as seat to occupant.Cause
This, seating height can be the difference between the height at the top of the head based on occupant and the height at top of seat.Seat
Top height can based on seat apart from the height of vehicle floor, the thickness of seat or both determine.Height sensor
115 computing electronics can come really from the input of the seat back angle sensor (not shown) being incorporated into backrest
Determine chair angle.The height at the top of the head of occupant can such as be included in highly sensing by such as vision sensor
Video camera in device 115 is determining.Height sensor 115 can be programmed to the eye-level display by detecting such as occupant
The height of (eye level) come to measure or estimate occupant head top height.Because chair angle may affect occupant
The top of head height, so height sensor 115 can be programmed to account for and chair angle according to seat
Chair angle is adjusting the height at the top of the head of occupant.Height sensor 115 can be programmed to output and represent by highly passing
The seating height signal of the seating height measured by sensor 115.
Seat belt pulls out the electronics calculating dress that sensor 120 can include being programmed to determine that seat harness pulls out length
Put.Seat harness pull-out length can include being in, as occupant, the seat harness released when seat belt in seat is clasped
Length.Seat belt pulls out the seat belt pull-out that sensor 120 can be programmed to export the length representing seat harness pull-out
Signal.
Processor 125 can include the computing electronics being programmed to the classification determining occupant.The category can be base
In seated weight for example determined by weight sensor 110, determined by height sensor 115 seating height, Yi Jiyou
Seat belt pulls out the length of seat harness pull-out determined by sensor 120.For example, processor 125 can be programmed to connect
Receive seated weight signal, seating height signal and seat belt pull-out signal.In some feasible embodiments, processor 125
Determination can be programmed to take one's seat body-mass index, this body-mass index of taking one's seat can be seated weight and seating height
Function.For example, body-mass index of taking one's seat can be seated weight as shown in equation (1) with seating height square ratio
Value, wherein seated weight are with kilogram measuring and seating height to be measured with rice.
Processor 125 can be programmed to specify classification based on the BMI that takes one's seat for occupant.Example categories can include body weight
Kick the beam, normal type, overweight or fat.
In some cases, processor 125 can be programmed to consider as drawn by seat belt when specifying classification for occupant
Go out the length of the seat harness pull-out indicated by signal.That is, the length of seat harness pull-out can confirm that specified class
Not (that is, larger seat belt pull-out length can indicate larger occupant).Alternatively, processor 125 can be programmed to
Length is pulled out according to seat belt and adjusts classification.For example, athletic occupant can have the relatively high BMI that takes one's seat, but can
Can with there is identical weight and height other people are the same big.Therefore, show larger occupant in the BMI that takes one's seat, but safety
In the case that band pull-out length shows less occupant, it is to have regular that processor 125 can be programmed to occupancy classi-fication
Weight.
Processor 125 can be programmed to adjust one or more vehicle subsystems according to specified classification.For example,
Processor 125 can be programmed to generate and output command signal, and this command signal order vehicle subsystem is according to specified
Classification adjusting one or more settings.The example of such vehicle subsystem can include such as bound control module, car
Such control module such as body control module.Command signal may indicate that whether one or more air bags should be unfolded,
How to adjust the position of lateral telescope or rearview mirror, seat position, steering wheel height etc..
In another example, as shown in Figure 2 B, occupant classification system 105 can be included by vehicle communication network bus
Height of seat sensor 14 that 135 communicatedly connect, imageing sensor 12, angular transducer 26, safety device 40, weight sensing
Device 110, data storage 130, seat belt pull-out sensor 120 and processor 125.Processor 125 data storage 130 can be by
Including in computing device 140.
Data storage 130 can be any of type, for example, hard disk drive, solid-state drive, server or
Any volatibility or non-volatile media.Data storage 130 can store the data sending by bus 135.
Bus 135, for example, for the one or more known mechanism of network service in vehicle 10, such as known control
Device LAN (CAN) bus processed etc., can be used to provide various communications, including from imageing sensor 12 and angular transducer
26 data arriving processor 125.
Safety device 40 can be, for example, seat belt, pad, air bag etc..Safety device 40 can receive from process
The instruction of device 125 for example, adjusts seat belt pull-out rate by adjusting D-ring position with based on seated occupant highly to adjust
Or belt position etc..Belt position can be, for example, the height of the seat harness of in the vertical direction, in longitudinal side
Upwardly toward the position of the seat harness of the front or behind of vehicle 100, in a lateral direction to inside or outside vehicle 100
The position of seat harness and/or seat harness rotation, for example, as is known with respect to longitudinally, laterally and/or perpendicular
The orientation of the D-ring that the seat belt of straight axis passes through.
Fig. 3 shows the system 105 of the seating height being configured to determine that in vehicle 100.System 105 includes image sensing
Device 12, instrument board 16 and vehicle floor 18.System 105 further includes seat 20, and this seat 20 includes backrest 22, seat
Base 24, height of seat sensor 14, angular transducer 26, weight sensor 110 and headrest 28.Vehicle 100 typically has
The ground-based vehicle of three or more wheels.However, vehicle 100 can be, for example, ship or aircraft.
Imageing sensor 12 can be 3D video camera, such as time-of-flight camera, its be configured to catch image and
The image distance away from video camera for the measurement.Imageing sensor 12 can also be stereo camera, for measuring image away from video camera
Use infrared sensor enhanced complementary metal oxide semiconductors (CMOS) (CMOS) sensor of distance, charge coupled device (CCD) pass
Sensor etc..Imageing sensor 12 collects the data (such as image) of occupant and seat 20 and image central moment imageing sensor 12
Distance.
Imageing sensor 12 is typically mounted to instrument board 16.Imageing sensor 12 is positioned in the pre- of vehicle floor 18 top
Set a distance.Generally, vehicle floor 18 is interior vehicle surface, and the foot of wherein occupant is placed on it in routine operation, but because
Often plane for vehicle floor 18, be defined as parallel to ground for the vehicle floor 18 of the purpose of system 105
The predetermined plane in face, the wherein other parts of system 105 measure from this predetermined plane.Vehicle floor 18 arrives the close of plane
Degree is allowed for the coherence measurement distance of imageing sensor 12, height of seat sensor 14 etc., and the height of therefore passenger
Coherence measurement.
Imageing sensor 12 is arranged on above vehicle floor 18 with setting angle α in height SMH.Angle [alpha] is vehicle ground
Plate 18 and include the angle between the axis CL of the camera lens in imageing sensor 12.Imageing sensor 12 is installed in
Eyes away from occupant at DSE, for example, be the distance of the eyes from imageing sensor 12 to occupant apart from DSE.
Seat 20 supports occupant in the normal operation of vehicle 10.Specifically, backrest 22 supports the back of the body of occupant
Portion and shoulder, seat base 24 supports the lower part of the body of occupant, and the head of the 28 support occupants that rest the head on.Backrest 22, seat
Base 24 and headrest 28 can be generally by for example, and metal, foam, leather, vinyl, fabric etc. are constituted.Seat base 24
Top is located at the height of seat SH of vehicle floor 18.
Height SH between height of seat sensor 14 measuring vehicle floor 18 and height of seat sensor 14.Height of seat
Sensor 14 may be located at the top surface near seat base 24.Angular transducer 26 be installed on backrest 22 and with
The rotation of backrest 22 and rotate.Angular transducer 26 measures the rotation with respect to fixing seat base 24, measures seat bottom
Angle between seat 24 and backrest 22.
Angular transducer 26 measures the angle between seat base 24 and backrest 22.The measurement of angular transducer 26 can
To be calibrated to vehicle floor 18 to determine the angle beta of backrest.Angular transducer 26 can be any of type, example
As hall effect sensor.From height of seat sensor 14 and angular transducer 26 measurement together with from imageing sensor
12 image is used for determining seated occupant's height together.
Seat 20 further includes weight sensor 110.Weight sensor 110 can be installed in seat base 24 with
The seated weight of measurement occupant.
Fig. 4 shows the image 30 of the occupant catching by imageing sensor 12.Image 30 includes the face corresponding to occupant
Facial zone 32.Facial zone 32 includes two oculars 34 of the eyes corresponding to occupant.Computing device 140 is using
The image processing techniquess known are identifying facial zone 32.
Each ocular 34 includes the eye pupil 36 of the eye pupil corresponding to occupant.Specifically, computing device 140 is using known
Image processing techniquess identifying eye pupil 36.
Fig. 5 shows the process 200 for determining the occupant height SOH that stands.Process 200 starts in frame 205, wherein calculates
Device 140 obtains the image 30 of occupant from imageing sensor 12 and image 30 is stored in data storage 130.
Next, in frame 210, computing device 140 obtains in backrest 22 and vehicle floor 18 from angular transducer 26
Between backrest angle beta.
Next, in frame 215, computing device 140 obtains the weight of the occupant from weight sensor 110.
Next, in frame 220, the head pose based on Image estimation occupant for the computing device 140.Specifically, computing device
140 analysis of the image 30, the eye pupil including occupant and shoulder, to determine whether passenger sees forwards, i.e. towards imageing sensor
12.Imageing sensor 12 needs the clear view of the face of occupant, and if the head of passenger is rotated, then imageing sensor 12
New image may be needed.
Next, in frame 225, computing device 140 collects the predetermined attitude threshold value from data storage 130.Specifically, take advantage of
The head of member can rotate a certain amount of height with determination passenger, as determined by by attitude threshold value.
Next, in frame 230, whether computing device 140 determines the head pose of passenger in attitude threshold value, i.e. whether
Occupant's head faces forward the height enough to determine seated occupant.If it is, process 200 moves to frame 235.Otherwise, process 200
Return to frame 205, wherein shoot another image 30 with imageing sensor 12.
In frame 325, computing device 140 identifies the ocular in image 30 using known image analysis technology.
Next, in frame 240, using image 30 and known image analysis technology, computing device 140 determines the eye of passenger
The distance between the eyes of pupil position and imageing sensor 12 and occupant DSE.Computing device 140 also determines that eye pupil and the figure of occupant
The distance between axis CL as sensor 12 DECL.
Next, in frame 245, computing device 140 determines the height SVH that sensor is observed.Specifically, computing device 140
Determine that eye-level SVH that sensor is observed is
Wherein, SMH is sensor setting height(from bottom), i.e. the distance between vehicle floor 18 and imageing sensor 12, and SH is seat
Chair height, i.e. from vehicle floor 18 to the distance of height of seat sensor 14, DSE is the eyes of imageing sensor 12 and occupant
The distance between, DECL is the distance between axis CL of the eyes of occupant and imageing sensor 12, and α is axis CL and car
Angle between floor 18.
Next, in frame 250 it is assumed that the upper part of the body of occupant and head are aligned with backrest 22, such as in the system of Fig. 1-4
Described, computing device determines that seated occupant's eye-level OEH is
Wherein β is seat back angle.
Next, in frame 255, according to seated occupant's eye-level OEH, computing device 140 determines the height of the occupant that stands
SOH is
SOH=OEH C (4)
Wherein C is the multiplication factor based on take one's seat eye-level OEH and the relation stood between occupant height SOH.For example,
The eye-level of standing of median male can be approximately the 93.4% of total height, and the eye-level of standing of average female can be about
It is the 92.6% of total height.Seated occupant's eye-level OEH can be approximated to be the waist of stand eye-level and people and floor it
Between height between difference, it can be approximately the total height of 46.3% and average female of the total height of median male
46%.Therefore, in one example, C can beOr about 2.16.That is, the total height of occupant can be seated occupant's eye
About 2.16 times of eyeball height OEH.The value of C can characteristic based on known biological computation and driver adjusting.
System 105 is it may also be determined that occupant seating height OSH.Similar to the occupant height SOH that stands, occupant's seating height
OSH can seated occupant's eye-level OEH from such as equation (4) and multiplication factor C determine.However, occupant seating height OSH
The different value of multiplication factor C will be needed.For example, total standing height of median male and the difference stood between eye-level can
To be the 6.6% of about total height, and the total height of average female and the difference stood between eye-level can be about total height
7.4%.The representative value of C for determining the median male of occupant seating height OSH can beOr about 1.142.
Next, in frame 260, computing device 140 calculates the performance figure for occupant.Specifically, computing device 140 can
To calculate the body-mass index (BMI) of occupant using the height of occupant as determined by from weight sensor and body weight.Take advantage of
Member BMI be the ratio between the body weight of occupant and height measurement, and can be stood using occupant and/or seating height,
And occupant stands and/or seated weight is determining, as shown in figs 6 a-6 c.
Next, in frame 265, computing device 140 determines whether occupant BMI is higher than predetermined threshold.For example, BMI value is higher than
30, also sometimes referred to as " fat " is it may be necessary to adjust safety device 40.If BMI is higher than predetermined threshold, process 200 is moved
Move frame 270, otherwise, process 200 terminates.
In frame 270, computing device 140 adjustment safety device 40 is to adapt to occupant, and process 200 terminates.For example, calculate
Device 140 can by the position for occupant's adjustment D-ring with high BMI for example, by substantially vertically (example
As to the upper and lower side of vehicle pillar) move D-ring to adjust seat belt pull-out and/or belt position.
Fig. 6 A-6C shows and can be used to occupant be classified and is used between various tolerance in above process
Example relationship figure.Fig. 6 A is shown and is associated standing height (in units of millimeter) with seating height (in units of millimeter)
The Figure 40 0 getting up.Y-axis represents standing height and X-axis represents seating height.Trendline 405 show occupant's standing height and
Example parameter relation between occupant's seating height.
Referring now to Fig. 6 B, Figure 41 0 will stand weight (by kilogram in units of) with seated weight (by kilogram in units of) close
Connection gets up.Y-axis represents the weight and X-axis represents seated weight of standing.Trendline 415 show stand weight and seated weight it
Between example parameter relation.
Fig. 6 C is Figure 42 0 that the BMI that takes one's seat (SBMI) is associated (SBMI Vs BMI) with the BMI that stands.Y-axis represents station
Vertical BMI and X-axis represent according to the BMI that takes one's seat that for example equation (1) calculates.Trendline 425 shows stands BMI and takes one's seat
Example parameter relation between BMI.This relation be can be used to set up data base, form or will be taken advantage of based on the BMI classification of foundation
Other relations that member's classification (such as underweight, normal type, overweight and fat) is associated with the various BMI that take one's seat.
Therefore, occupant classification system 105 can use traditional BMI class according to his or her seated weight and seating height
Automotive occupant is classified.By measuring seated weight and seating height, occupant classification system 105 can specify class
Not, provide such information without user input.Alternatively, armed with such information, then occupant classification system
105 can confirm classification using the BMI that takes one's seat, or vice versa as the same.With various vehicle subsystems such as air bag, backsight
The setting that mirror etc. is associated can be adjusted according to specified classification.
Fig. 7 is the flow chart of instantiation procedure 300, and instantiation procedure 300 can be executed by occupant classification system 105, for root
Build according to occupant is classified to occupant, and provides his or her height and weight without occupant.
In frame 305, occupant classification system 105 can determine the seating height of occupant.Seating height can be from such as Fig. 5's
Process 200 determines.Seating height can alternatively determine from the seating height signal being generated by height sensor 115.Survey
Amount seating height can include height sensor 115 and determine when occupant takes one's seat the vertical height of occupant, determines chair angle (example
If backrest is with respect to the angle on floor) and vertical height is adjusted according to chair angle.Height sensor 115 is permissible
Generate the output of the seating height of seating height representing adjusted.Processor 125 can receive seating height signal and base
To determine the seating height of occupant in seating height signal.
In frame 310, occupant classification system 105 can determine the seated weight of occupant.Seated weight can be for example from by weight
The seated weight signal that quantity sensor 110 is generated determines.Weight sensor 110 can measure seated weight and the phase of occupant
Seated weight signal should be generated in ground.Processor 125 can receive seated weight signal and be determined according to seated weight signal
The seated weight of occupant.
In frame 315, occupant classification system 105 can be determined based on the ratio of such as seated weight and seating height and takes one's seat
BMI.For example, the BMI that takes one's seat can be as the seated weight that discussed with regard to equation (1) and seating height square ratio letter
Number.Processor 125 can determine this ratio.
In frame 320, occupant classification system 105 can specify classification based in the BMI that takes one's seat determined by frame 315 for occupant.
The category may indicate that occupant weight kicks the beam, is in normal type, overweight or fat.Which classification processor 125 can be based on
It is associated with the BMI that takes one's seat in occupant determined by frame 315 and specify classification for occupant.The category can be from taking one's seat various
Selected in the form of BMI value and various category associations, database.
In decision block 325, occupant classification system 105 can confirm that the classification specified by frame 320.Confirm that classification can be wrapped
Include, for example, processor 125 receives the seat belt pull-out signal of the amount representing seat harness pull-out.If such as seat safety
With pull-out amount mismatch have with identical as front occupant take one's seat BMI other occupants build, then processor 125 can
Need to be adjusted with determination occupancy classi-fication.For example, for athletic occupant, seat harness pull-out can be very low, to the greatest extent
Pipe occupant has the relatively high BMI that takes one's seat.In this example, seat harness pull-out is inconsistent with the BMI that takes one's seat.If such as seat
Seat belt pull-out amount with have with as front occupant identical take one's seat BMI other occupants uniformity of type, then process
Device 125 can confirm that classification.If classification is not identified, process 300 may proceed to frame 330.If classification is identified,
Then process 300 may proceed to frame 335.
In frame 330, occupant classification system 105 can more new category.For example, processor 125 can make the classification base of renewal
In the amount of seat harness pull-out and the ratio of seating height and seated weight.Update classification can from for example by various just
Selected in form that seat BMI value, various seat harness pull-out amounts and various classification associate, database.This mistake
Journey 300 may proceed to frame 335.
In frame 335, occupant classification system 105 can generate and output command signal is to one or more vehicle subsystems
System, such as safety device 40.The command signal that can be generated by processor 125 and export can order subsystem according to indication
Fixed classification is adjusting one or more settings.Example vehicle subsystem can include such as bound control module, Body Control
Such control module such as module.This command signal may indicate that whether one or more air bags should be unfolded, how
The position of regulation lateral telescope or rearview mirror, seat position, steering wheel height etc..
After frame 335, process 300 can terminate.However, in some cases, process 300 can periodically again
Start or return to previous frame, such as frame 305, so that classification can continuously be reappraised when main vehicle 100 operates
And update.
Generally, described computing system and/or device can adopt any amount of computer operating system, including but
It is not limited to following version and/or variant：FordOperating system, MicrosoftOperating system,
Unix operating system (for example, sell by the Oracle on California redwood beachOperating system), New York Ah
AIX UNIX operating system that the International Business Machine Corporation (IBM) in Munch city sells, (SuSE) Linux OS, California Ku Bidi
Blackberry OS that the blackberry company of Mac OSX that the Apple of promise sells and iOS operating system, Canadian Waterloo sells and
Google and the Android operation system of open mobile phone alliance exploitation.The example of computing device includes, but not limited to on-vehicle vehicle
Computer, computer workstation, server, desktop computer, notebook computer, portable computer or handheld PC or some its
His computing system and/or device.
Computing device (than as discussed herein those) generally each includes instructing, this instruction is passed through than as listed above
One or more computing device of those can perform and for implementing frame or the step of process described above.Computer
Executable instruction can compile from computer program or understand, this computer program use multiple programs design language and/
Or technology sets up, these language and/or technology include but is not limited to JavaTM、C、C++、Visual Basic、Java Script、
Independent one or combination in Perl, HTML etc..Generally, processor (for example, microprocessor) is for example from memorizer, computer-readable
Medium etc. receives instruction, and executes these instructions, thus executing one or more processes, including one or more said
Process.Such instruction and other data can use multiple computer-readable medium storages and transmission.In computing device
File is typically stored in the set of the data on computer-readable medium such as storage medium, random access memory etc..
Computer-readable medium includes any medium participating in providing computer-readable data (for example instructing).Such
Medium can take many forms, including but not limited to non-volatile media and Volatile media.Non-volatile media can be wrapped
Include, such as CD or disk and other persistent memory.Volatile media can include such as dynamic random access memory
(DRAM), it typically constitutes main storage.The common form of computer-readable medium includes, for example floppy disk (floppy
Disk), flexible disk (flexible disk), hard disk, tape, any other magnetic medium, CD-ROM (the read-only storage of CD
Device), DVD (Digital video disc), any other optical medium, card punch, paper tape, any other there is hole pattern of rows and columns
Physical medium, RAM (random access memory), PROM (programmable read only memory), EPROM (the read-only storage of electrically programmable
Device), FLASH-EEPROM (flash Electrically Erasable Read Only Memory), any other storage chip or memory cartridge, or appoint
What its computer-readable medium.
As it is used herein, adverbial word " generally " means that shape, structure, measurement, quantity, time etc. can deviate standard
The really geometry of description, distance, measurement, quantity, time etc., this is because the aspect such as material, machining, manufacture is scarce
Fall into.In the accompanying drawings, identical reference represents identical element.It is furthermore possible to vary some or all in these elements.
As for part described herein, process, system, method etc. it should be appreciated that these are provided for some enforcements are described
The purpose of example, and it is not construed in any way as limiting claimed invention.
Data base, data storage bank or other data storage described herein can be included for storing, accessing and examine
Various types of mechanism of the multiple data of rope, including the application number of the file set in hierarchical data base, file system, professional format
According to storehouse, relational database management system (RDBMS) etc..Each such data storage is typically included in using for example mentioned above
Those one of the computing device of computer operating system in, and via network in every way in any one or many
Plant and conduct interviews.File system can access from computer operating system, and can include the file storing in a variety of formats.
RDBMS, in addition to using for creating, storing, edit and execute the language of storing process, is usually used structuralized query language
Speech (SQL), for example above-mentioned proceduring SQL (PL/SQL) language.
In some instances, system element may be implemented as in one or more computing devices (for example, server, individual
People's computer etc.) on computer-readable instruction (for example, software), be stored in computer-readable medium (for example, magnetic related to this
Disk, memorizer etc.) on.Computer program can comprise storage be used on a computer-readable medium executing described herein
Such instruction of function.
Although as medium described herein, process, system, method etc. it should be appreciated that the step of these processes
It is described as according to certain ordered sequence generation Deng, but such process may be embodied as with different from said suitable
The order of sequence is executing described step.It should be further understood that some steps can execute simultaneously, other steps can increase
Plus, or some steps described herein can omit.For example, in process 200, step 205-270 one or more permissible
Omit, or step can be to execute different from the order shown in Fig. 5.In other words, the description purpose of process in this is provided
Indicate that some embodiments, and be not construed in any way as limiting disclosed theme.
It is understood, therefore, that description above is intended to illustrate and not limit.Except the example providing, reading
On the basis of description above, many embodiments and application are obvious.The scope of the present invention reference should not be made to described above
Book is determining, but should determine together with whole equivalent scope that these claim are enjoyed with reference to claims.
It is contemplated that will occur in the technical field being discussed at this with the expected following development, and disclosed system and method will
It is incorporated in these following embodiments.In sum, it should be understood that, the present invention can modify and change and only by
Claim below is limiting.
The all terms using in the claims are intended to be given them usual as understood by those skilled in the art
Implication, unless here makes clearly contrary instruction.Particularly singular article such as " ", " being somebody's turn to do ", the use of " described " etc. should
It is understood to describe one or more shown elements, except describing clearly contrary restriction in non-claimed.
The present invention is described by way of illustration, and it should be appreciated that the term purport that used
It is descriptive word nature rather than restricted word nature.In view of above-mentioned teaching, many modifications of the present invention and change
Change is possible, and the present invention can be to implement different from the other modes specifically describing.
There is provided summary to allow reader quickly to understand fully essence disclosed in this technology.In the case of submitting this summary to it should be understood that
It is not used in the scope explaining or limiting claim or implication.Additionally, in the foregoing Detailed Description, it can be seen that, it is
Simplify the purpose of the disclosure, different feature is aggregated in various embodiments.This open method is not necessarily to be construed as
Reflect the intention of more features that embodiment needs required for protection are than narration clear in each claim.On the contrary,
As the following claims reflect, inventive concept is all features less than single disclosed embodiment.Therefore, below
Claim is attached in specific embodiment in this way, and every claim itself is as the master individually claiming
Topic.
Claims (20)
1. a kind of system, comprises computer, and described computer includes processor and memorizer, and described memory storage is passed through described
The executable instruction of processor, described instruction is：
Receive the image of the head including occupant from imageing sensor；
It is based at least partially on distance and the seat detecting from described image sensor to the head of described occupant
Angle is determining the seating height of described occupant；And
It is based at least partially on the described seating height of described occupant to adjust safety device.
2. system according to claim 1, wherein said instruction further includes in the described image position described occupant
Eye pupil instruction.
3. system according to claim 2, wherein said instruction further includes to be based at least partially on from described image
Sensor to described eye pupil distance to determine described occupant described seating height instruction.
4. system according to claim 1, wherein said instruction further include described image based on described occupant Lai
Determine the instruction of head pose angle.
5. system according to claim 1, wherein said instruction further includes to receive the occupant from weight sensor
The instruction of weight.
6. system according to claim 5, wherein said instruction further includes based on described seating height and described takes advantage of
Member's weight is calculating the instruction of performance figure.
7. system according to claim 5, wherein said safety device is seat harness, and described instruction includes base
To adjust the instruction of seat harness position in described performance figure.
8. system according to claim 5, wherein said safety device is seat harness, and described instruction includes base
To adjust the instruction of seat harness pull-out rate in described performance figure.
9. a kind of system, comprises：
Imageing sensor；
Seat, described seat includes backrest, seat base and the angular transducer being arranged on described backrest；And
Computer, described computer includes processor and memorizer, and it is executable that described memory storage passes through described processor
Instruct, described instruction is：
Receive the image of the head including occupant from described image sensor；
It is based at least partially on distance and the described seat detecting from described image sensor to the head of described occupant
Angle is determining the seating height of described occupant；And
It is based at least partially on the described seating height of described occupant to adjust safety device.
10. system according to claim 9, wherein said instruction further include described image based on described occupant Lai
Determine the instruction of head pose angle.
11. systems according to claim 9, wherein said instruction further includes to receive the occupant from weight sensor
The instruction of weight.
12. systems according to claim 11, wherein said instruction further includes based on described seating height and described
Drive and passengers weight is calculating the instruction of performance figure.
13. systems according to claim 11, wherein said safety device is seat harness, and described instruction includes
Adjust the instruction of seat harness position based on described performance figure.
14. systems according to claim 11, wherein said safety device is seat harness, and described instruction includes
Adjust the instruction of seat harness pull-out rate based on described performance figure.
A kind of 15. methods, comprise：
Receive the image including occupant's head from imageing sensor；
It is based at least partially on distance and the seat detecting from described image sensor to the head of described occupant
Angle is determining the seating height of described occupant；And
It is based at least partially on the described seating height of described occupant to adjust safety device.
16. methods according to claim 15, comprise to position the eye pupil in the described image of described occupant further.
17. methods according to claim 15, comprise to receive the drive and passengers weight from weight sensor further.
18. methods according to claim 17, comprise to count based on described seating height and described drive and passengers weight further
Calculate performance figure.
19. methods according to claim 17, wherein said safety device is seat harness, and methods described enters one
Step comprises to adjust seat harness position based on described performance figure.
20. methods according to claim 17, wherein said safety device is seat harness, and methods described enters one
Step includes adjusting seat harness pull-out rate based on described performance figure.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/827,331 US9919670B2 (en) | 2015-06-17 | 2015-08-17 | System and method for occupant height |
| US14/827,331 | 2015-08-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106467078A true CN106467078A (en) | 2017-03-01 |
| CN106467078B CN106467078B (en) | 2021-09-21 |
Family
ID=56936607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610653472.6A Active CN106467078B (en) | 2015-08-17 | 2016-08-10 | System and method for occupant height |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN106467078B (en) |
| DE (1) | DE102016113933A1 (en) |
| GB (1) | GB2541543A (en) |
| MX (1) | MX2016010645A (en) |
| RU (1) | RU2016133006A (en) |
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| CN109131339A (en) * | 2017-06-15 | 2019-01-04 | 福特全球技术公司 | occupant position detection |
| CN111507174A (en) * | 2019-01-30 | 2020-08-07 | 斯特拉德视觉公司 | Method and device for predicting height and weight of passenger |
| CN111591178A (en) * | 2020-05-13 | 2020-08-28 | 北京百度网讯科技有限公司 | Automobile seat adjusting method, device, equipment and storage medium |
| CN111845258A (en) * | 2020-06-16 | 2020-10-30 | 宁波吉利汽车研究开发有限公司 | Method and device for regulating and controlling in-vehicle equipment, terminal and storage medium |
| CN112208398A (en) * | 2019-07-09 | 2021-01-12 | 北京地平线机器人技术研发有限公司 | Seat adjusting method and device |
| CN112238834A (en) * | 2019-07-16 | 2021-01-19 | 株式会社斯巴鲁 | Occupant protection system for vehicle |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102022129408A1 (en) * | 2022-11-08 | 2024-05-08 | Bayerische Motoren Werke Aktiengesellschaft | Device and method for controlling a passenger airbag of a vehicle |
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| CN111591178A (en) * | 2020-05-13 | 2020-08-28 | 北京百度网讯科技有限公司 | Automobile seat adjusting method, device, equipment and storage medium |
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| CN111591178B (en) * | 2020-05-13 | 2022-01-18 | 阿波罗智联(北京)科技有限公司 | Automobile seat adjusting method, device, equipment and storage medium |
| KR102566358B1 (en) | 2020-05-13 | 2023-08-10 | 아폴로 인텔리전트 커넥티비티 (베이징) 테크놀로지 씨오., 엘티디. | Automobile seat adjustment method, device, equipment and storage medium |
| CN111845258A (en) * | 2020-06-16 | 2020-10-30 | 宁波吉利汽车研究开发有限公司 | Method and device for regulating and controlling in-vehicle equipment, terminal and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2541543A (en) | 2017-02-22 |
| GB201613252D0 (en) | 2016-09-14 |
| CN106467078B (en) | 2021-09-21 |
| MX2016010645A (en) | 2018-03-01 |
| RU2016133006A (en) | 2018-02-16 |
| DE102016113933A1 (en) | 2017-02-23 |
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